Experimental and numerical evaluation of new pipe damper with two-level performance

In this paper, a new kind of ring damper composed of three rings is introduced and investigated numerically and experimentally. The proposed damper combined three steel ring damper in order to dissipate energy of two different level of predefined excitation such as moderate and severe one. first fus...

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Autores principales:	Elham Moaddab, Hossein Tizhoosh
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	hybrid pipe damper two level performance energy dissipation damping experimental Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/c1ef5bb070984398bfbf6174a3de67d3
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spelling	oai:doaj.org-article:c1ef5bb070984398bfbf6174a3de67d32021-11-08T15:54:39ZExperimental and numerical evaluation of new pipe damper with two-level performance2476-39772538-261610.22065/jsce.2019.171319.1780https://doaj.org/article/c1ef5bb070984398bfbf6174a3de67d32021-05-01T00:00:00Zhttps://www.jsce.ir/article_88508_4757a8ee4ae3d4e4b8f7c82a1270436a.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In this paper, a new kind of ring damper composed of three rings is introduced and investigated numerically and experimentally. The proposed damper combined three steel ring damper in order to dissipate energy of two different level of predefined excitation such as moderate and severe one. first fuse (outer pipe) and second fuse (inner pipes) can absorb energy in moderate and severe earthquakes respectively. To evaluate the introduced damper, numerical finite element models are developed to clarify the effect of thickness and diameter variation of main fuse. Results of force- displacement curves obtained from cyclic loading confirmed the two level performance of models. Stiffness and fore increase have been observed after gap displacement and improved the energy dissipation capacity after the predefined displacement gap. Also, damping ratio are calculated for all samples and results showed that equivalent damping ratio have been improved when main fuse was engaged. Two experimental samples have been constructed based on numerical models details and examined under cyclic loading with constant displacement amplitudes. Defined force-displacement results of experiments showed that samples could tolerate more than 20 cycles of 10 times of yield displacement amplitude. Good agreement between numerical model and experimental samples results have been achieved.Elham MoaddabHossein TizhooshIranian Society of Structrual Engineering (ISSE)articlehybrid pipe dampertwo level performanceenergy dissipationdampingexperimentalBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 8, Iss 3, Pp 75-95 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	hybrid pipe damper two level performance energy dissipation damping experimental Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	hybrid pipe damper two level performance energy dissipation damping experimental Bridge engineering TG1-470 Building construction TH1-9745 Elham Moaddab Hossein Tizhoosh Experimental and numerical evaluation of new pipe damper with two-level performance
description	In this paper, a new kind of ring damper composed of three rings is introduced and investigated numerically and experimentally. The proposed damper combined three steel ring damper in order to dissipate energy of two different level of predefined excitation such as moderate and severe one. first fuse (outer pipe) and second fuse (inner pipes) can absorb energy in moderate and severe earthquakes respectively. To evaluate the introduced damper, numerical finite element models are developed to clarify the effect of thickness and diameter variation of main fuse. Results of force- displacement curves obtained from cyclic loading confirmed the two level performance of models. Stiffness and fore increase have been observed after gap displacement and improved the energy dissipation capacity after the predefined displacement gap. Also, damping ratio are calculated for all samples and results showed that equivalent damping ratio have been improved when main fuse was engaged. Two experimental samples have been constructed based on numerical models details and examined under cyclic loading with constant displacement amplitudes. Defined force-displacement results of experiments showed that samples could tolerate more than 20 cycles of 10 times of yield displacement amplitude. Good agreement between numerical model and experimental samples results have been achieved.
format	article
author	Elham Moaddab Hossein Tizhoosh
author_facet	Elham Moaddab Hossein Tizhoosh
author_sort	Elham Moaddab
title	Experimental and numerical evaluation of new pipe damper with two-level performance
title_short	Experimental and numerical evaluation of new pipe damper with two-level performance
title_full	Experimental and numerical evaluation of new pipe damper with two-level performance
title_fullStr	Experimental and numerical evaluation of new pipe damper with two-level performance
title_full_unstemmed	Experimental and numerical evaluation of new pipe damper with two-level performance
title_sort	experimental and numerical evaluation of new pipe damper with two-level performance
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/c1ef5bb070984398bfbf6174a3de67d3
work_keys_str_mv	AT elhammoaddab experimentalandnumericalevaluationofnewpipedamperwithtwolevelperformance AT hosseintizhoosh experimentalandnumericalevaluationofnewpipedamperwithtwolevelperformance
_version_	1718441604945018880

Experimental and numerical evaluation of new pipe damper with two-level performance

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